Adjustable bearing and coupling for pulleys.



F. L. MORSE. v v ADJUSTABLE BEARING AND COUPLING FOR PULLEYS.- APPLICATION FILED MAR. 17, I914.

1,171,347; Patented Fb.8,1916.

. F .1. 9 Zi Z2 16 ijf i g-z 11 g 24 3 f jiTjj Z4 IN VENTOR ATTORNEY fication.

coupling the same the wear in the coupling STATES PATENT OFFICE.

FRANK L. MORSE, OF ITHAOA, NEW YORK, ASSIGNOB NEW YORK, A CORPORATION OF NEW YORK.

'ro ironsn CHAIN comm, or

Specification of Letters Patent.

Application filed March 17, 1914. I Serial No. 825,213.

To all whom it may concern:

Be it known that I, FRANK L. Monsn, a citizen of the United States, residing at Ithaca, in the countyof Tompkins and State of New York, have invented a certainnew and useful Bearings and Couplings for Pulleys, of which improvement the following is a speci- This invention relates to adjustable bearings for sprocket wheels, belt wheels, gear. wheels, or other pulleys in which the wheel is mounted on a transversely adjustable bearing and is connected through a suitable coupling with the driving or driven member or shaft. In some installations of driving mechanism from one shaft to another, as for instance between the crank shaft and the timed shafts of a gas engine, it is very desirable to maintain accurate angular relation be-- and as this relation is tween said shafts, varied and disturbed to some extent by, the or sprocket chain due to Wear in drlving, I have provided an improved means for transversely adjusting the bearing of to its shaft through a suitable driving connection, whereby the proper angular relation between the shafts may be maintained and the looseness of the belt or chain may be taken up as desired.

Another feature of my improvement re-' lates to means for automatically taking up connecting the pulley to its operating shaft. These and other features of my invention will now be more member adapted to and Fig. 6, a. similar -View of the intermediate coupling member.

. ber,- 8, which frame or support, 9, in which it may be adfully described and claimed. y

In the accompanying drawings: Figure 1 is a longitudinal sectional view of an ad justable bearing and coupling embodying my improvement; Fig. 2, an elevation thereof; Fig. 3, a perspective view of the eccentric bearing member; Fig. 4, a similar view of the bushing and coupling member adapted to be fixed to the pulley or sprocket wheel; Fig. 5, a similar view. of the coupling be fixed to the shaft;'

.According to the construction'shown in the drawing, the pulley or sprocket wheel, 7, is mounted on is rotatably'mounted in the Improvement in Adjustable one of said wheels and forthe eccentric bearing mern-' 'justed and held in any given position by means of the clamping ring, 10, secured to the frame by bolts or screws and having a projection or pin, 11, adapted to engage in any one of the series of holes, 12, formed in the flange, 13, of' the eccentric bearing member,

The shaft, 14, extends through the cylindrical opening, 15', and is concentric with the cylindrical portion of the bearing member mounted in the frame, but is eccentric to the bearing of the pulley mounted on said member and parallel thereto. As the bearing member is rotated within the frame and 'adjusted'from' one position to another, it will be seen that thepulley or wheel, 7 will be shifted transversely with reference to its shaft and frame, and that thereby the looseness of the belt or, sprocket chain used in driving the corresponding wheel and shaft, (not shown) of the-drive, may be readily taken up and the same angular relation of the respective shafts maintained.

or Wheel to its shaft, which is mounted in fixed bearings, any suitable form of driving connection or coupling may be employed,

but I prefer to use' the construction shown in the drawing and comprising a coupling member or bushing, 16 which may be either keyed to the wheel, or formed integral therewith, and having a face provided with a transverse slot or groove, 17, a shaft member, '18, fixed on transverse groove, 19, and an intermediate coupling member'or disk, 20, having corresponding projections, 21, extending on opposite sides and substantiallyat right angles to each other, and engaging the grooves of the other members. The central. opening through the intermediate coupling diskjis of larger diameter than the shaft to ane -1',- for the lateralplay of said disk, as the pro jections slide to and fro in said grooves ing the operation of the device and the, transmission of power between the pulley and shaft. 'In order to automatically take up any wear of the coupling members, the grooves, and the correspondingprojections engaging therewith are preferably tapered in cross section, and a spring is employed for forcing said parts together.

Patented Feb. 8, 191a.

the shaft and havinga durmounted within' recesses formed in the wheel, 7, which is slidably be adjusted, a sprocket wheel rotatably mounted longitudinally upon its bearing, mounted on said eccentric bearing member, the springs acting against the annular and a coupling connection for maintaining spring ring, 23, bearing upon the frame. the same speed and direction of rotation be- 5 By this means the coupling is kept tight at tween said sprocket wheel and shaft. all times as the springs force the parts to- 5. In a chain driving mechanism, the com gether and the beveled surfaces take up the bination of a sprocket wheel having a transwear between the coupling members. The versely adjustable bearing, a shaft parallel shaft may be provided with a fixed collar,

with the axis of said bearing, the driving 19 24, bearing against the inner face of the and driven parts each having a coupling bearing member, 8, to prevent an endwise member, and an intermediate coupling memmovement of the shaft. ber for transmitting motion from one of said In a chain driving mechanism of this coupling members to the other, the intercharacter,.where the motion is transmitted mediate and side coupling members having 15 between shafts having a certaintimed relacooperating projections and grooves. tion, it is important/that the coupling con- 6. The combination of a support, a bearnection should maintain the same speed and i g ber mounted to have a rotatable addirection of rotation between the driving j t t in aid upport and provided with and driven parts, and while I have shown a fl an for clamping said flange to 20 one form of coupling having this function, th t, aid member h i g an eccenit will be understood that my improvement t i portion projecting at one side of said is not limited thereto, since various forms of t, k t h l t t bl mouna couplings, within the scope of my invention, ed on said bearing, a driven memb r, and a may be devised for transmitting motio at driving connection between said wheel and 25 the same speed and direction from the th driv n member. sprocket wheel to the shaft, and at the same 7. The combination of a support, a beartime provide for the transverse adjustment. i g member mounted to have a rotatable ad- 7 I of the bearing of the sprocket wheel relative ju t ent in said support and provided with to the axis. of the shaft or other driven fl ng mean for clamping said flange to 30 member- 1 I the support, said member having an eccen- From the foregoing description, it will tric portion projecting at one-side of said now be apparent that I have provided a simsupport, a sprocket wheel rotatablym'ounted ple and durable construction which may be on said bearing and having a coupling face readily adjusted at'any time to tighten the provided with a groove, a shaft, a coupling 5 chain or belt operating upon the pair of member fixed'on said shaft and having a sprocket wheels or pulleys, the power being transverse groove, and'an intermediate coufreely transmitted between the wheel and pling disk having transverse projections its fixed shaft in all positions of said wheel.-

upon its opposite sides for engaging said avmg now described my invention, what grooves. 1

40 claim as new and desire to secure by Let- 8, The combination of a support an adters Patent is:

iustable bearing member movably mounted l. The combination of an adjustable bearon said support, a sprocket wheel mounted ing member, a sprocket wheel. rotatably on said bearing member, a shaft extending mounted on said bearingm'ember, a' driven within said bearing member, and a coupling 45 shaft or element, and a coupling connection connecting said sprocket wheel and shaft. for maintaining the same speed and direc-. 9. The combination of a support, a beartion of rotation between said sprocket wheel ing member rotatably mounted in' said supand shaft. I i port and having an eccentric bearing por- 2. Inachain driving mechanismflzhe comtion, means for adjusting said member in 50 bination of a sprocket wheel having a trams-1 the support, a sprocket wheel mounted on versely adjustable bearing, a driven shaft or said eccentric bearing, a shaft mounted ecelement, and a coupling connection for maincentrically to said sprocket bearing, and taining the same speed and directionof rotaconcentrically with the bearing in said suption between said sprocket wheel and shaft. port, the eccentricity being constant in all 3. The combination of a rotatably adjustpositions of the bearing member, and a cou- 3 able bearing member, a sprocket wheel rotapling connecting said shaft and sprocket tably mounted thereon, a shaft extending wheel. 7 within said bearing member and eccentric 10. The combination of a support, a bearthereto, and a coupling connection for maining member provided with a cylindrical pora taining the same'speed and direction of rotation having a rotatable adjustment in said hi! tion between said sprocket wheel and shaft. support, and another cylindrical portion 4. The combination of a shaft, a rotatably forming a bearing for a sprocket wheel, said adjustable bearing member eccentric to said cylindrical bearing portions being eccentric shaft, means for rigidly holding said eccento each other, a shaft having a bearin ric bearing in any position to which it may within said member and concentric with the -tatably mounted on said member and having a coupling face provided with a transverse'groove, a coupling member fixed on.

said shaft and having a transverse groove,

- and an intermediate coupling disk having transverse projections upon its opposite sides for engaging said grooves.

12. The combination-of a driving wheel having a coupling member, atransversely adjustable bearing for said wheel, said wheel being slidable longitudinally upon its bearing, a shaft, a coupling member fixed" on said shaft, an intermediate coupling member located between the other coupling members, said coupling members being provided with transverse grooves tapered in cross section and correspondingly tapered projections cooperating therewith, and means acting to force said wheel longitudinally against said coupling members.

13. The combination of a driving wheel having a coupling member'provided with a transverse groove of tapered cross section, a

transversely adjustable bearing for said wheel, said Wheel being slidable longitudinally upon its bearing, a shaft, a coupling member fixed on said shaft and having a transverse groove tapered in-cross section, an intermediate coupling disk tapered projections upon its opposite sides for engaging said grooves, and a spring having acting to force said wheel longitudinally against said coupling members.

FRANK L. MORSE Witnesses:

' D. B. PERRY, P. C. Cour. 

